Campbell Biology, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (10th Edition)
10th Edition
ISBN: 9780133922851
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Chapter 46.1, Problem 3CC
WHAT IF? → If a hermaphrodite self-fertilizes, will the offspring be identical to the parent? Explain.
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Fertilization:
a) Briefly describe the process of fertilization in humans,
b) identifying key aspects that stop sperms from different species to fertilize human oocytes, and
c) identifying also key aspects that prevent polyspermy.
In vertebrate animals, spermatogenesis and oogenesis differ, in that
1.) Cytokinesis is unequal in oogenesis whereas it i equal in spermatogenesis
2.) spermatogenesis is not completed until after fertilization occurs, but oogenesis is completed by the time a girl is born
3.) Oogenesis produces four haploid cells, whereas spermatogenesis produces only one functional spermatozoon
4.) Oogensis ends at menopause. Whereas spermatogenesis is finished before birth
5.) Oogensis begins at the onset of sexual maturity whereas spermatogenesis happens in embryonic development
Explain the chromosomal and genetic control of sex determination in mammals. Clearly establish the difference between the primary and the secondary phases.
Chapter 46 Solutions
Campbell Biology, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (10th Edition)
Ch. 46.1 - Compare and contrast the outcomes of asexual and...Ch. 46.1 - Parthenogenesis is the most common form of asexual...Ch. 46.1 - WHAT IF? If a hermaphrodite self-fertilizes, will...Ch. 46.1 - Prob. 4CCCh. 46.2 - How does internal fertilization facilitate life on...Ch. 46.2 - What mechanisms have evolved in animals with (a)...Ch. 46.2 - Prob. 3CCCh. 46.3 - Why might frequent use of a hot tub make it harder...Ch. 46.3 - Prob. 2CCCh. 46.3 - WHAT IF? If each vas deferens in a male was...
Ch. 46.4 - How are the functions of FSH and LH in females and...Ch. 46.4 - How does an estrous cycle differ from a menstrual...Ch. 46.4 - WHAT IF? If a human female begins taking...Ch. 46.4 - Prob. 4CCCh. 46.5 - Prob. 1CCCh. 46.5 - In what ways are tubal ligation and vasectomy...Ch. 46.5 - Prob. 3CCCh. 46 - Would a pair of haploid offspring produced by...Ch. 46 - Identify which of the following, if any, are...Ch. 46 - How does the difference in size and cellular...Ch. 46 - Prob. 46.4CRCh. 46 - Prob. 46.5CRCh. 46 - Prob. 1TYUCh. 46 - In male mammals, excretory and reproductive...Ch. 46 - Prob. 3TYUCh. 46 - Prob. 4TYUCh. 46 - Prob. 5TYUCh. 46 - Prob. 6TYUCh. 46 - Prob. 7TYUCh. 46 - Prob. 8TYUCh. 46 - DRAW IT In human spermatogenesis, mitosis of a...Ch. 46 - Prob. 10TYUCh. 46 - SCIENTIFIC INQUIRY You discover a new egg-laying...Ch. 46 - WRITE ABOUT A THEME: ENERGY AND MATTER In a short...Ch. 46 - SYNTHESIZE YOUR KNOWLEDGE A female Komodo dragon...
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- Test Your Understanding 13 EVOLUTION LINK Contrast the biological advantages of hermaphroditism that involves cross-fertilization with hermaphroditism that involves self-fertilization.arrow_forward1@arrow_forwarda. What are the physical differences and similarities in the reproduction systems of plants and animals? b. What is the difference of morphogenesis in plants and animals?arrow_forward
- N Question How does the progeny formed from asexual reproduction differ from those formed by sexual reproduction?arrow_forwardDescribe the three major parts of a spermatozoon and state what organelles or cytoskeletal components are contained in each?arrow_forward2)Why are organisms that broadcast spawn useful for studying fertilization & development? a)Fertilization does not require multiple gametes b)Fertilization occurs outside the bodies of the parents, so it can be directly observed c)Fertilization is observable because the eggs are large enough to see d)Fertilization occurs without the need for parentsarrow_forward
- ???arrow_forwardA: Why do sea urchins have external fertilization? [Discuss the life style of the developing sea urchin embryo in the water column compared to a very different ecological niche of the adults on the ocean floor. Besides, would you want to give live birth to a sea urchin! ouch!] 2: Then why don't the parents take care of the young? [In fact the adults do in a way. After the embryo has grown large enough and metamorphosed into a young urchin they hide in the spines of the adults, living off of the scraps of food produced from the messy eating of the adults] 3: Because the urchin life involves two or more ecological niches, they are more susceptible to predation and exposure to environmental toxins. What environmental conditions, predators and toxins might they be exposed to at each stage?arrow_forward. Explain in-vitro fertilization and embryo transfer in brief.arrow_forward
- Unlike mitosis, meiosis in male mammals results in the formation of a) one haploid gamete b) three diploid gametes c) four diploid gametes d) four haploid gametes Please I need a surely answer and a quicker responsearrow_forwardAnswer choices: A) Fertilization B) meiosis C) zygote D) gamete E) germ cellarrow_forwardWhat are the advantages and disadvantages of the alternation between fertilization and meiosis in sexually reproducing organism?arrow_forward
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